[tdwg] current location of TDWG proceedings?

I am trying to locate the publication that is cited as follows:

Riccardi, G., White, R., Cryer, P., Hyam, R., Miller, C., Nicolson, N., Ó Tuama, E., Page, R., Rees, J. & Richards, K. (2009) Persistent Identifiers for Biodiversity Informatics: Status and Likely Directions. Proceedings of TDWG 2009, Abstracts. Available from: http://www.tdwg.org/proceedings/issue/current (accessed: January 2012).

Please direct me to the current location of TDWG proceedings, or less preferably, to that one in particular.

Thanks!

Dan Stoner